Internal molding machine for steel cylinder of fire extinguisher

Abstract

The utility model relates to the technical field of internal molding, in particular to an internal molding machine for a steel cylinder of a fire extinguisher, which comprises a machine body, a machine cover, a heating device and a rotating mechanism, and the rotating mechanism consists of a driving device mounted on the machine body and a supporting device mounted on the machine cover; the driving device and the supporting device can move relatively in the axial direction to complete assembly and separation, the supporting wheels are detachably connected to the supporting device, and the steel cylinders with different diameters can be supported due to the fact that the supporting wheels with different diameters are arranged on the supporting device. Therefore, the internal molding machine disclosed by the utility model can be used for carrying out internal molding on the steel cylinders with various sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of internal molding, in particular to an internal molding machine for fire extinguisher cylinders. Background Art

[0002] Fire extinguishers are one of the most common firefighting tools available today, often stored in public places for immediate use. The extinguishing agents in fire extinguishers vary depending on the cause of the fire, with water-based extinguishers often used for Class A fires.

[0003] However, the extinguishing agent of water-based fire extinguishers is corrosive to the inside of the fire extinguisher cylinder. Therefore, the inner wall of the fire extinguisher cylinder (hereinafter referred to as the "cylinder") needs to be treated with anti-corrosion during production. This process is called "internal molding". Nowadays, in order to ensure the internal molding effect, the internal molding machine drives the fire extinguisher to rotate during the internal molding to ensure the internal molding effect and uniformity. Therefore, the rotating mechanism of the existing internal molding machine is only compatible with one size of cylinder, so the existing internal molding machine cannot adapt to the production of different types of fire extinguishers by enterprises.

[0004] In summary, improvements need to be made. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an internal molding machine for fire extinguisher cylinders, aiming to solve the problems arising from the above-mentioned background technology.

[0006] The technical solution of the utility model is achieved as follows: an inner molding machine for a fire extinguisher cylinder, comprising:

[0007] The body has an inner plastic cavity, and an inlet communicating with the inner plastic cavity is formed at one end of the body;

[0008] a cover adapted to the entrance and capable of being controlled by a driver to move away from or toward the entrance;

[0009] The heating device has a heating end located in the inner plastic cavity and used to heat the cylinder; the characteristics are: a rotating mechanism is provided in the inner plastic cavity, and the rotating mechanism is composed of a driving device mounted on the body and a supporting device mounted on the cover;

[0010] The driving device and the supporting device can be relatively axially moved to complete assembly and separation, and a supporting wheel is detachably connected to the supporting device.

[0011] Preferably, the supporting device includes:

[0012] A plurality of support shafts are rotatably mounted on the cover and are circumferentially spaced apart.

[0013] A transmission cavity is formed axially extending on each support shaft, and a first limiting groove extending axially is provided on the cavity wall of the transmission cavity;

[0014] A first limiting rib is formed on the outer wall of the support shaft and extends axially;

[0015] Wherein, a support wheel is sleeved on the support shaft and is coaxially arranged, and the support wheel has a second limiting groove for the first limiting rib to slide.

[0016] Preferably, the driving device includes:

[0017] The drive shaft is rotatably mounted on the machine body and corresponds to each support shaft one by one;

[0018] A second limiting rib is formed on the outer wall of the drive shaft and extends axially and is adapted to fit in the first limiting groove;

[0019] a sprocket connected to the drive shaft via a transmission shaft;

[0020] Transmission chain, transmission connection between sprockets;

[0021] Among them, any sprocket can be controlled to rotate by the motor.

[0022] Preferably, the machine body and the machine cover are rotatably connected to rotating disks respectively, and a powder molding nozzle is provided on any rotating disk.

[0023] Preferably, the heating device comprises:

[0024] A mounting plate is longitudinally slidably connected to the inner plastic cavity;

[0025] A plurality of igniters are installed on the mounting plate at intervals;

[0026] The mounting plate is provided with a plurality of natural gas nozzles which can be supplied with gas from a natural gas pipeline, and the mounting plate can be controlled to move up and down by a lifter.

[0027] The utility model has at least the following beneficial effects:

[0028] 1. The support wheels on the support device of the present invention are used to support the steel cylinder and assist the steel cylinder in completing the internal molding process. According to the different sizes of steel cylinders, support wheels of different diameters can be selected and installed on the support device to support steel cylinders of different sizes, so that the internal molding machine of the present invention can perform internal molding on steel cylinders of different sizes.

[0029] 2. To ensure the internal plasticizing effect, the utility model can adjust the height of the sliding plate with the natural gas nozzle according to the different sizes of the steel cylinders, thereby adjusting the distance between the natural gas nozzle and the steel cylinder to ensure the heating effect of the steel cylinder.

[0030] In addition, other advantages of the present invention will be demonstrated in the embodiment section of the present invention, thereby making the beneficial effects of the present invention more significant. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0032] Figure 1 This is a schematic structural diagram of a specific embodiment 1 of the present utility model;

[0033] Figure 2 for Figure 1 Another state diagram of ;

[0034] Figure 3 for Figure 1 AA section view in;

[0035] Figure 4 for Figure 3 A magnified view of part A in FIG;

[0036] Figure 5 for Figure 1 Schematic diagram of direction B in ;

[0037] Figure 6 for Figure 1 BB cross-sectional view in;

[0038] Figure 7 This is a schematic structural diagram of specific embodiment 2 of the present utility model. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] Example 1

[0041] like Figure 1-6 As shown, the utility model discloses an inner molding machine for fire extinguisher cylinders, comprising:

[0042] The body 10 has an inner plastic cavity 11, and an inlet communicating with the inner plastic cavity 11 is formed at one end of the body;

[0043] The cover 12 is adapted to the inlet and can be controlled by a driver 12a (a hydraulic cylinder disposed in the inner plastic cavity) to move away from or toward the inlet;

[0044] The heating device has a heating end located in the inner plastic cavity 11 and used to heat the cylinder; the inner plastic cavity 11 is provided with a rotating mechanism, which is composed of a driving device mounted on the body and a supporting device mounted on the cover;

[0045] The driving device and the supporting device can be relatively moved axially to complete assembly and separation, and a supporting wheel 20 is detachably connected to the supporting device.

[0046] In this embodiment: the supporting device includes:

[0047] A plurality of support shafts 21 are rotatably mounted on the cover 12 and are circumferentially spaced apart. In this embodiment, there are two support shafts.

[0048] A transmission cavity 22 is formed axially extending from each support shaft 21, and a first limiting groove 22a extending axially is provided on the cavity wall of the transmission cavity 22;

[0049] A first limiting rib 23 is formed on the outer wall of the support shaft 21 and extends axially;

[0050] The support shaft 21 is sleeved with a coaxially arranged support wheel 20 , and the support wheel 20 has a second limiting groove 24 a for the first limiting rib 23 to slide.

[0051] In this embodiment: the driving device includes:

[0052] The drive shaft 30 is rotatably mounted on the body 10 and corresponds to each support shaft 21 one by one.

[0053] The second limiting rib 31 is formed on the outer wall of the driving shaft 30 and extends axially and fits in the first limiting groove 22a;

[0054] The sprocket 32 ​​is connected to the drive shaft 30 via a transmission shaft;

[0055] The transmission chain 33 is connected between the sprockets 32;

[0056] Among them, any sprocket 32 ​​can be controlled to rotate by the motor 34. In this embodiment, the motor 34 and the sprocket 32 ​​are driven by a pulley 35.

[0057] In this embodiment, the machine body 10 and the machine cover 12 are rotatably connected to a rotating disk 40 , and a powder molding nozzle 41 is provided on any rotating disk 40 .

[0058] refer to Figure 1-6 When the present embodiment is in use, the hydraulic cylinder can be used to drive the machine cover to open, and the appropriate support wheel can be selected according to the diameter of the steel cylinder (that is, a steel cylinder with a large diameter can use a support wheel with a small diameter, and a steel cylinder with a small diameter can use a support wheel with a large diameter, so that the bottle mouth of the steel cylinder is connected to the powder nozzle), and the support wheel is installed on the support shaft from one end of the support shaft, and then the steel cylinder is placed on the support wheel to complete the loading, and the hydraulic cylinder then drives the machine cover to close, and the steel cylinder enters the inner molding cavity. When the machine cover is closed, the bottle mouth of the steel cylinder corresponds to the powder nozzle, that is, the plastic powder can be fed into the steel cylinder through the powder nozzle, and the steel cylinder is heated under the ignition state of the heating device (an igniter and a gas nozzle provided on the inner wall of the inner molding cavity), thereby completing the internal molding. During the internal molding process, the motor drives the sprocket to rotate and controls the rotation of the support shaft through the drive shaft, and controls the rotation of the steel cylinder through the support wheel, thereby ensuring the uniformity of the internal molding.

[0059] Example 2 is different from Example 1 in that:

[0060] like Figure 7 As shown, in this embodiment: the heating device includes:

[0061] The mounting plate 50 is longitudinally slidably connected to the inner plastic cavity 11;

[0062] A plurality of igniters 51 are installed on the mounting plate 50 at intervals;

[0063] The mounting plate 50 is provided with a plurality of natural gas nozzles 52 that can be supplied with gas from a natural gas pipeline. The mounting plate 50 can be raised and lowered by a lifter 53 (a hydraulic cylinder provided on the machine body).

[0064] In this embodiment, the mounting plate is disposed on the top of the inner plastic cavity. In other embodiments, the mounting plate (including the igniter and the natural gas nozzle) may also be disposed on the side wall or bottom of the inner plastic cavity.

[0065] refer to Figure 7 In this embodiment, the distance between the natural gas nozzle and the steel cylinder can be adjusted by the hydraulic cylinder according to the internal molding of steel cylinders of different sizes, thereby ensuring that the steel cylinders are heated.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An internal molding machine for fire extinguisher cylinders, comprising: The body (10) has an inner plastic cavity (11), and an inlet communicating with the inner plastic cavity (11) is formed at one end of the body (10); a cover (12) adapted to the inlet and capable of being controlled by a driver (12a) to move away from or toward the inlet; The heating device has a heating end located in an inner plastic cavity (11) and used to heat a steel cylinder; the characteristic is that a rotating mechanism is provided in the inner plastic cavity (11), and the rotating mechanism is composed of a driving device installed on the machine body (10) and a supporting device installed on the machine cover (12); The driving device and the supporting device can be relatively axially moved to complete assembly and separation, and a supporting wheel (20) is detachably connected to the supporting device.

2. The internal molding machine for fire extinguisher cylinders according to claim 1, characterized in that: The supporting device comprises: A plurality of support shafts (21) are rotatably mounted on the cover (12) and are spaced apart in the circumferential direction; A transmission cavity (22) is formed in an axially extending manner on each support shaft (21), and a first axially extending limiting groove (22a) is provided on the cavity wall of the transmission cavity (22); A first limiting rib (23) is formed on the outer wall of the support shaft (21) and extends axially; Wherein, a coaxially arranged support wheel (20) is sleeved on the support shaft (21), and the support wheel (20) has a second limiting groove (24a) for the first limiting rib (23) to slide.

3. The internal molding machine for fire extinguisher cylinders according to claim 1, characterized in that: The driving device comprises: A drive shaft (30) is rotatably mounted on the machine body (10) and corresponds one-to-one to each support shaft (21); A second limiting rib (31) is formed on the outer wall of the drive shaft (30) and extends axially, and is adapted to fit in the first limiting groove (22a); a sprocket (32) connected to the drive shaft (30) via a transmission shaft; A transmission chain (33) is connected between the sprockets (32); Wherein, any sprocket (32) can be controlled to rotate by a motor (34).

4. The internal molding machine for fire extinguisher cylinders according to any one of claims 1 to 3, characterized in that: The machine body (10) and the machine cover (12) are rotatably connected to rotating disks (40) respectively, and a powder molding nozzle (41) is provided on any rotating disk (40).

5. The internal molding machine for fire extinguisher cylinders according to any one of claims 1 to 3, characterized in that: The heating device comprises: A mounting plate (50) is longitudinally slidably connected to the inner plastic cavity (11); A plurality of igniters (51) are installed on the mounting plate (50) at intervals; The mounting plate (50) is provided with a plurality of natural gas nozzles (52) that can be supplied with gas from a natural gas pipeline, and the mounting plate (50) can be controlled to move up and down by a lifter (53).

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